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Date: Tue, 25 Apr 2023 16:34:17 +0800
From: kernel test robot <lkp@...el.com>
To: Kai-Heng Feng <kai.heng.feng@...onical.com>, jejb@...ux.ibm.com,
martin.petersen@...cle.com
Cc: oe-kbuild-all@...ts.linux.dev, bblock@...ux.ibm.com,
acelan.kao@...onical.com,
Kai-Heng Feng <kai.heng.feng@...onical.com>,
Damien Le Moal <dlemoal@...nel.org>,
linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ata: libata: Defer rescan on suspended device
Hi Kai-Heng,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.3 next-20230424]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Kai-Heng-Feng/ata-libata-Defer-rescan-on-suspended-device/20230425-142001
base: linus/master
patch link: https://lore.kernel.org/r/20230425061746.503145-1-kai.heng.feng%40canonical.com
patch subject: [PATCH v2] ata: libata: Defer rescan on suspended device
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230425/202304251654.BnZBfauy-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/bed073367820f7e00147a8f39ed5f0d9d5eb6c67
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Kai-Heng-Feng/ata-libata-Defer-rescan-on-suspended-device/20230425-142001
git checkout bed073367820f7e00147a8f39ed5f0d9d5eb6c67
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304251654.BnZBfauy-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/ata/libata-eh.c: In function 'ata_eh_revalidate_and_attach':
>> drivers/ata/libata-eh.c:2991:29: error: 'pm_suspend_target_state' undeclared (first use in this function); did you mean 'scsi_target_state'?
2991 | if (pm_suspend_target_state != PM_SUSPEND_ON)
| ^~~~~~~~~~~~~~~~~~~~~~~
| scsi_target_state
drivers/ata/libata-eh.c:2991:29: note: each undeclared identifier is reported only once for each function it appears in
vim +2991 drivers/ata/libata-eh.c
2927
2928 static int ata_eh_revalidate_and_attach(struct ata_link *link,
2929 struct ata_device **r_failed_dev)
2930 {
2931 struct ata_port *ap = link->ap;
2932 struct ata_eh_context *ehc = &link->eh_context;
2933 struct ata_device *dev;
2934 unsigned int new_mask = 0;
2935 unsigned long flags;
2936 int rc = 0;
2937
2938 /* For PATA drive side cable detection to work, IDENTIFY must
2939 * be done backwards such that PDIAG- is released by the slave
2940 * device before the master device is identified.
2941 */
2942 ata_for_each_dev(dev, link, ALL_REVERSE) {
2943 unsigned int action = ata_eh_dev_action(dev);
2944 unsigned int readid_flags = 0;
2945
2946 if (ehc->i.flags & ATA_EHI_DID_RESET)
2947 readid_flags |= ATA_READID_POSTRESET;
2948
2949 if ((action & ATA_EH_REVALIDATE) && ata_dev_enabled(dev)) {
2950 WARN_ON(dev->class == ATA_DEV_PMP);
2951
2952 /*
2953 * The link may be in a deep sleep, wake it up.
2954 *
2955 * If the link is in deep sleep, ata_phys_link_offline()
2956 * will return true, causing the revalidation to fail,
2957 * which leads to a (potentially) needless hard reset.
2958 *
2959 * ata_eh_recover() will later restore the link policy
2960 * to ap->target_lpm_policy after revalidation is done.
2961 */
2962 if (link->lpm_policy > ATA_LPM_MAX_POWER) {
2963 rc = ata_eh_set_lpm(link, ATA_LPM_MAX_POWER,
2964 r_failed_dev);
2965 if (rc)
2966 goto err;
2967 }
2968
2969 if (ata_phys_link_offline(ata_dev_phys_link(dev))) {
2970 rc = -EIO;
2971 goto err;
2972 }
2973
2974 ata_eh_about_to_do(link, dev, ATA_EH_REVALIDATE);
2975 rc = ata_dev_revalidate(dev, ehc->classes[dev->devno],
2976 readid_flags);
2977 if (rc)
2978 goto err;
2979
2980 ata_eh_done(link, dev, ATA_EH_REVALIDATE);
2981
2982 /* Configuration may have changed, reconfigure
2983 * transfer mode.
2984 */
2985 ehc->i.flags |= ATA_EHI_SETMODE;
2986
2987 /* Schedule the scsi_rescan_device() here.
2988 * Defer the rescan if it's in process of
2989 * suspending or resuming.
2990 */
> 2991 if (pm_suspend_target_state != PM_SUSPEND_ON)
2992 ap->pflags |= ATA_PFLAG_DEFER_RESCAN;
2993 else
2994 schedule_work(&(ap->scsi_rescan_task));
2995 } else if (dev->class == ATA_DEV_UNKNOWN &&
2996 ehc->tries[dev->devno] &&
2997 ata_class_enabled(ehc->classes[dev->devno])) {
2998 /* Temporarily set dev->class, it will be
2999 * permanently set once all configurations are
3000 * complete. This is necessary because new
3001 * device configuration is done in two
3002 * separate loops.
3003 */
3004 dev->class = ehc->classes[dev->devno];
3005
3006 if (dev->class == ATA_DEV_PMP)
3007 rc = sata_pmp_attach(dev);
3008 else
3009 rc = ata_dev_read_id(dev, &dev->class,
3010 readid_flags, dev->id);
3011
3012 /* read_id might have changed class, store and reset */
3013 ehc->classes[dev->devno] = dev->class;
3014 dev->class = ATA_DEV_UNKNOWN;
3015
3016 switch (rc) {
3017 case 0:
3018 /* clear error info accumulated during probe */
3019 ata_ering_clear(&dev->ering);
3020 new_mask |= 1 << dev->devno;
3021 break;
3022 case -ENOENT:
3023 /* IDENTIFY was issued to non-existent
3024 * device. No need to reset. Just
3025 * thaw and ignore the device.
3026 */
3027 ata_eh_thaw_port(ap);
3028 break;
3029 default:
3030 goto err;
3031 }
3032 }
3033 }
3034
3035 /* PDIAG- should have been released, ask cable type if post-reset */
3036 if ((ehc->i.flags & ATA_EHI_DID_RESET) && ata_is_host_link(link)) {
3037 if (ap->ops->cable_detect)
3038 ap->cbl = ap->ops->cable_detect(ap);
3039 ata_force_cbl(ap);
3040 }
3041
3042 /* Configure new devices forward such that user doesn't see
3043 * device detection messages backwards.
3044 */
3045 ata_for_each_dev(dev, link, ALL) {
3046 if (!(new_mask & (1 << dev->devno)))
3047 continue;
3048
3049 dev->class = ehc->classes[dev->devno];
3050
3051 if (dev->class == ATA_DEV_PMP)
3052 continue;
3053
3054 ehc->i.flags |= ATA_EHI_PRINTINFO;
3055 rc = ata_dev_configure(dev);
3056 ehc->i.flags &= ~ATA_EHI_PRINTINFO;
3057 if (rc) {
3058 dev->class = ATA_DEV_UNKNOWN;
3059 goto err;
3060 }
3061
3062 spin_lock_irqsave(ap->lock, flags);
3063 ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG;
3064 spin_unlock_irqrestore(ap->lock, flags);
3065
3066 /* new device discovered, configure xfermode */
3067 ehc->i.flags |= ATA_EHI_SETMODE;
3068 }
3069
3070 return 0;
3071
3072 err:
3073 *r_failed_dev = dev;
3074 return rc;
3075 }
3076
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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